Operator's Manual

iii
TABLE OF CONTENTS
FOREWORD........................................................................................................................vi
SYSTEM CONFIGURATION .............................................................................................viii
1. OPERATIONAL OVERVIEW........................................................................................1-1
1.1 Control Description .............................................................................................................. 1-1
1.2 Remote Controller................................................................................................................ 1-2
1.3 Turning the Power On/Off.................................................................................................... 1-3
1.3.1 Power on .................................................................................................................. 1-3
1.3.2 Power off .................................................................................................................. 1-4
1.4 Raising, Lowering the Transducer....................................................................................... 1-5
1.4.1 Lowering the transducer........................................................................................... 1-5
1.4.2 Raising the transducer ............................................................................................. 1-5
1.5 Choosing a Display..............................................................................................................1-6
1.6 Adjusting Screen Brilliance, Panel Dimmer......................................................................... 1-7
1.7 Adjusting the Gain ............................................................................................................... 1-7
1.8 Basic Menu Operation ......................................................................................................... 1-8
2. HORIZONTAL MODE...................................................................................................2-1
2.1 Operational Overview .......................................................................................................... 2-1
2.2 Typical Horizontal Mode Display ......................................................................................... 2-2
2.3 Choosing the Range............................................................................................................ 2-3
2.4 Choosing Sector Width........................................................................................................ 2-4
2.5 Choosing Train Center......................................................................................................... 2-5
2.6 Choosing the Tilt Angle........................................................................................................ 2-6
2.6.1 Choosing the tilt angle.............................................................................................. 2-6
2.6.2 Relation between tilt angle and echo ....................................................................... 2-7
2.6.3 Tilt angle for surface fish .......................................................................................... 2-8
2.6.4 Suitable tilt angle ...................................................................................................... 2-9
2.7 Choosing the Training Speed ............................................................................................ 2-10
2.8 Finding Echo Position with the Cursor .............................................................................. 2-10
2.9 Event Marker ......................................................................................................................2-11
2.9.1 Inscribing the event marker.....................................................................................2-11
2.9.2 Deleting all event markers...................................................................................... 2-12
2.10 Depth and Horizontal Range Markers ............................................................................... 2-12
2.11 Adjusting the Picture.......................................................................................................... 2-13
2.11.1 Suppressing bottom and surface reflections.......................................................... 2-13
2.11.2 Suppressing bottom tail.......................................................................................... 2-14
2.11.3 Displaying weak echoes clearly ............................................................................. 2-14
2.11.4 Erasing weak echoes ............................................................................................. 2-17
2.11.5 Enlarging fish echoes (horizontal expansion display)............................................ 2-18
2.12 Target Lock ........................................................................................................................ 2-19
2.12.1 Choosing target lock mode .................................................................................... 2-19
2.12.2 Manual reverse mode............................................................................................. 2-19
2.12.3 Position mode......................................................................................................... 2-20
2.12.4 Echo mode ............................................................................................................. 2-21
2.13 Horizontal Menu Overview ................................................................................................ 2-23